<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="讲师名称">
        <el-input v-model="teacher.name" />
      </el-form-item>
      <el-form-item label="讲师排序">
        <el-input-number
          v-model="teacher.sort"
          controls-position="right"
          :min="0"
        />
      </el-form-item>
      <el-form-item label="讲师头衔">
        <el-select v-model="teacher.level" clearable placeholder="请选择">
          <el-option :value="1" label="高级讲师" />
          <el-option :value="2" label="首席讲师" />
        </el-select>
      </el-form-item>
      <el-form-item label="讲师资历">
        <el-input v-model="teacher.career" />
      </el-form-item>
      <el-form-item label="讲师简介">
        <el-input v-model="teacher.intro" :rows="10" type="textarea" />
      </el-form-item>

      <!-- 讲师头像 -->
      <el-form-item label="讲师头像">
        <!-- 头衔缩略图 -->
        <pan-thumb :image="String(teacher.avatar)" />
        <!-- 文件上传按钮 -->
        <el-button
          type="primary"
          icon="el-icon-upload"
          @click="imagecropperShow = true"
          >更换头像
        </el-button>
        <!--
            v-show：是否显示上传组件
            :key：类似于id，如果一个页面多个图片上传控件，可以做区分
            :url：后台上传的url地址
            @close：关闭上传组件
            @crop-upload-success：上传成功后的回调 -->
        <image-cropper
          v-show="imagecropperShow"
          :width="300"
          :height="300"
          :key="imagecropperKey"
          :url="BASE_API + '/eduoss/fileoss'"
          field="file"
          @close="close"
          @crop-upload-success="cropSuccess"
        />
      </el-form-item>
      <el-form-item>
        <el-button
          :disabled="saveBtnDisabled"
          type="primary"
          @click="saveOrUpdate"
          >保存</el-button
        >
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import ImageCropper from '../../../components/ImageCropper'
import PanThumb from '../../../components/PanThumb'
import teacher from "@/api/edu/teacher";
export default {
  data() {
    return {
      teacher: {
          name: '',
          sort: 0,
          level: 1,
          career: '',
          intro: '',
          avatar: 'https://edu-ljd.oss-cn-beijing.aliyuncs.com/2021/11/29/c4c35161-e8a0-4a70-9ab7-8cc5c31d5162.png'
      },
      saveBtnDisabled: false,
      imagecropperShow: false,
      imagecropperKey: 0,
      BASE_API:process.env.BASE_API,

    };
  },
  components:{ImageCropper,PanThumb},
  created() {
    this.init();
  },
  watch: {
    //监听
    $route(to, from) {
      this.init();
    },
  },
  methods: {
    close() {//头像上传失败方法
        this.imagecropperShow = false
        // 上传失败后，重新打开上传组件时初始化组件，否则显示上一次的上传结果
        this.imagecropperKey = this.imagecropperKey + 1
      },
    cropSuccess(data){//头像上传成功的方法
        this.teacher.avatar = data.url
        this.imagecropperShow = false
        this.imagecropperKey = this.imagecropperKey + 1
    },
    init() {
      if (this.$route.params && this.$route.params.id) {
        //从路径中获取id
        const id = this.$route.params.id;
        this.getInfo(id);
      } else {
        this.teacher = {};
      }
    },
    //根据讲师id查询的方法
    getInfo(id) {
      teacher
        .getTeacherInfo(id)
        .then((response) => {
          this.teacher = response.data.item;
        })
        .catch((response) => {
          this.$message({
            type: "error",
            message: "获取数据失败",
          });
        });
    },
    saveOrUpdate() {
      if (!this.teacher.id) {
        //添加
        this.saveTeacher();
      } else {
        this.updateTeacher();
      }
    },
    saveTeacher() {
      teacher.addTeacher(this.teacher).then((response) => {
        //提示信息
        this.$message({
          type: "success",
          message: "添加成功",
        });
        //回到列表页面 路由跳转
        this.$router.push({ path: "/edu/teacher/list" });
      });
    },
    updateTeacher() {
      teacher.updateTeacherInfo(this.teacher).then((response) => {
        //提示信息
        this.$message({
          type: "success",
          message: "修改成功",
        });
        this.$router.push({ path: "/edu/teacher/list" });
      });
    },
  },
};
</script>
